As with other chemical reactions, the reaction rate and efficiency of PCR are affected by limiting factors. 1  Thus, the entire PCR process can further be divided into three stages based on reaction progress: 2  Exponential amplification: At every cycle, the amount of product is doubled (assuming 100% reaction efficiency).
Quick Answer. Aquamarine forms when magma under the Earth's crust interacts with mineral-rich rocks under mountain ranges. The magma cools as it enters fissures and crevasses of rocks called pegamites. The minerals in the pegamites heat up when they interact with the magma, forming the gemstone. Continue Reading.
Aquamarine Aquamarine is best known for its breathtaking range of blue colors and belongs to the same family as emerald (beryl). The name derives from the Latin expression for seawater. Aquamarine is colored by trace amounts of iron that find their way into the crystal structure. A dark blue is the most desired color. Aquamarine possesses a durable hardness (7.5-8 on the Mohs scale), which qualifies it for any kind of jewelry.